Channel-opening machine.



E. M. TRAINER.

CHANNEL OPENING MACHINE.

APPLICATION FILED 11.193.123, 1911.

Patented 0G13. 14, 1913.

MMM

N STATES FRANK M. TRAINER, OF VTEYMOUTI-, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHNERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION 0F NEW JERSEY.

investe.

Specification of Letters Patent.

CHANNEL-OPENING MACHINE.

Patented Cet. Mc, 19113.

To all 'whom t may conce/m.'

Be it known that l, FRANK M. TRAINER, a citizen of the United States, residing at Weymouth, in the county of Norfolk and State of Massachusetts, have invented certain new and useful mprovements in Channel-Opening Machines; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to machines for opening channels in the outsoles of boots and shoes.

In the manufacture of boots and shoes, it is the practice to prepare the outsole by cutting a slash in the tread face of the sole, usually inclined to its surface and adjacent its margin, and to open the channel and turn loaclr the Hap thus formed so that the fastenings which attach the sole to the upper, or the welt, may be inserted in the channel. After the fastenings are inserted, they are covered by the turning down, or laying, of the channel flap. Machines of various types are employed for opening the channels and turning th-e flaps preparatory to the insertion of the fastenings. ln one type of machine now in common use, a rotating tool is provided .which in the operation of opening the channel is inserted between the flap and the body of the sole, and the present invention relates more particularly to this type of channel opening machine.

Various forms of channels, each having particular advantages, are formed in shoe soles in different kinds of worl. in order to open the outsole channels of these different forms, channel opening tools of diierent types are required. ln one type of tool now in common use and employed to open channels of the ordinary form, the tool is provided with a body portion substantially circular in cross section which is inserted in the channel between the flap and the body of the sole, and this body portion is pro-l vided with a series of wipers or lips, which by their wiping action on the lip, turn it back. Such a tool is shown with. substantial accuracy in the United States Letters Patent to Fischer, No. 588,970, dated August 3l, 1897, and will be hereinafter termed, for the salie of convenience, an ordinary channel opening tool. One form of channel, which is extensively used in the inanufaoture of boots and shoes, consists of a relatively short slit cut at a greater inclination to the surface of the sole than that of the ordinary channel. rfhis is known in the art as an English channel. ln opening a channel of this form and in turning the `hap thereof, a type of rotating tool is required radically different from the tool above described commonly employed for opening channels of the ordinary type.

Heretofore it has been the practice to detachably connect the channel opening tool with the shaft upon which it is mounted and to provide different forms of tools adapted to be used interchangeably in the machine in opening sole channels of different forms. rlhe removal of one form of channel opening tool and the substitution of another therefor is objectionable, as it consumes considerable time.

The object of the present invention is to provide a channel opening machine of the general type referred to that is adapted to open channels of different forms without the removal or interchange of parts.

`With the above object in view, broadly considered, the invention contemplates a channel opening machine provided with a rotary channel opening tool for opening ordinary channels and a second channel opening tool of a different type arranged upon the same axis of rotation as said first tool.

In the ordinary channel opening tool, the lower face of the tool which engages the body of the sole outside the channel flap is arranged substantially perpendicular tothe axis of rotation. For this reason, it is found that in operating upon different forms of soles in which the channels are cut at varying distances from the margin of the sole or of varying depths, the body of the sole often projects adjacent to and even across the axis of rotation of the tool. lt is therefore essential in the type of machine contemplated by the present invention, that the low-er face of the ordinary tool be entirely unobstructed when that tool is in operation upon a sole. A feature of the invention 'therefore contemplates mounting t-he second tool for axial movement relative to the ordinary tool and the provision of means by which the second tool may be projected into working position beyond the 'working parts of the ordinary tool or withdrawn entirely within the ordinary tool, at the will of the operator, so that when the ordinary tool is in operation o-n a sole, the second tool will be so located as not to interfere with the manipulation of the sole and the effective action of the ordinary tool thereon.

@ther features of the invention consist in certain improved constructions, combinations and arrangements of parts, the advantages of which will be obvious to one skilled in the art from the following description.

A machine embodying the invention in the best form at present known to the inventor is shown in the accompanying drawings, in which,

Figure 1 is a plan of the machine; Fig. 2 is a side elevation, partly in section; Fig. 3 is a transverse section on the line 3 3 of Fig. 2; and Fig. 4 is a partial elevation, in section, showing the ordinary channel opening tool in operating position on an Outsole.

ln the embodiment of the invention illustrated in the drawings, the machine comprises a channel opening tool of the form shown in the F ischer patent, hereinbefore referred to, rotatably mounted in suitable bearings in the machine frame. This tool is indicated at 1 and is provided with a portion 2 substantially circular in section, which is adapted to be inserted between the flap and the body of the sole, and with a series of lips, or wipers, 3 which wipe against the under face of the flap and turn it back from the channel (see Fig. 4). The tool 1 is mounted upon the lower end of a rotatable sleeve, or hollow-shaft 4 journaled in vertical bearings in an arm 5 of the machine frame and held therein by means of a nut 6 threaded on the sleeve above the upper bearing. The sleeve 4 is rotated by means of a belt 22 passing about a sheave 24, attached to said sleeve, and extending rearwardly over idle sheaves 23 and 25, from which it is led to a suitable source of power.

The machine is also provided with a second channel opening tool of a different type than the tool 1, as indicated at 7. ln the illustrated form of this second tool, the lower portion of the tool is substantially pyramidal in form and constitutes the operating portion thereof. ln opening a channel, the apex of the tool is inserted in the channel between the channel flap and the body of the sole, and in the rotation thereof, the edges of the pyramidal portion beat against the flap and turn and set the same. At the same time, the apex forms a groove at the base of the channel for the reception of the stitches or other fastenings. A tool of the type last described is especially well invasie adapted for opening English channels, but its use is not limited thereto. The tool 7 is mounted upon a rotary shaft S carried within and arranged to'be rota-ted by the sleeve 4. To this end, the shaft 8 is provided with a diametrically arranged key 9 (see Fig.

fitted therein, the ends of which project into diametrically opposed slots 1() (see dotted lines Fig. 2) in the sleeve 4.l

ln opening achannel by means of the tool 1, the portion 2 of the tool is inserted between the channel flap and the body of the sole and the sole is held in position,sub sjantially as indicated in Fig. 4, the lower face 26 of the channel opening tool being in engagement with the portion of the body of the sole outside the channel flap. As usual, the lower face of the tool 1 is substantially perpendicular to the axis of rotation. ln operating upon certain types of soles, the distance of the'channel from the edge of the sole or the depth of the channel is such that the portion of the sole in engagement with the tool face 26 projects to, or across, the axis of rotation of the tool. lt is therefore essential in the machine of the present invention, that when the tool 1 is in use, the tool 7 shall be removed to such a position that the lower face of the tool 1 will be wholly unobstructed. To this end, the tool 7 has been mounted so that it may be withdrawn, when not in operation, completely within the tool 1, at the same time permitting it to be projected into operating position beyond the tool 1 at the will of the operator. ln the preferred embodiment of the invention, the shaft 8 isr provided with an enlarged head 11, received in a suitable bore 12 in the lower end of the sleeve 4, to which the tool 7 is attached by a threaded stem screwed therein. rlhe tool 7 is normally held in its upper, or retracted, position within the bore 12 by means of a coiled spring 13 confined between the nut 6 and a shoulder on a sleeve 14 mounted on the upper end of the shaft 8 within the spring and held on the shaft by a nut 15. By adjusting the nut 15, the force exerted by the spring 18 may be varied.

The mechanism referred to, for projecting the tool 7 beyond the face of the tool 1, into operating position, comprises a grooved cap, or follower, 1G mounted upon the upper extremity of the shaft 8, in the groove of which a cam 17, in the form of an eccentric, mounted upona shaft 18, operates. The cam 17 normally is held in the dot and dash line position shown in Fig. 2 by means of a torsion spring 19 surrounding the Ashaft 18 and having one end attached to the frame in which the shaft is journaled, and the other inserted in a perforation in the cam. In order to project the tool 7 into operating position beyond the tool 1, manually operable means have been provided to rotate the cam 17 into the position shown in full lines in Fig. 2. This means comprises a flexible member 2O Wound about the shaft 18, and having one extremity thereof attached thereto, Which extends rearwardly over an idle pulley 21, and doWn to a foot treadle not shown.

lll/*hen the ordinary channel opening tool is in operation, the tool 7 is held in retracted position, Wholly Within the tool 1, as shown in Fig. 4, by means of the coiled spring 13. When it is desired to throw the channel opening` tool 7 into operating position, the operator presses the foot treadle connected with the iexible member 20, thereby rotating the cam 17 into the full line position shown in Fig. 2 and projecting the tool 7 beyond the tool 1. Upon the release of the foot treadle, the torsion spring 19 rotates the cam 17 again into the position shown in dot and dash lines, Fig. 2, and the coiled spring 13 acts to Withdraw the tool 7 Within the tool 1.

Having explained the nature and object of my invention, and having described one embodiment thereof, ,yvhat is claimed as new is 1. A channel opening machine, having in combination, a disk shaped rotary channel opening tool having a channel flap turning periphery and a sole margin engaging face substantially perpendicular to its axis of rotation and an axial bore opening through said face, a rotary sleeve on Which said tool 'i is mounted, a second channel opening tool arranged to rotate upon an axis coincident With the axis of rotation of the first tool and having an acting extremity substantially in line with its axis of rotation for engagement in the bottom of the channel and means for turning back the channel Hap, a shaft supporting said second tool arranged Within said sleeve, means to connect the shaft to rotate With the sleeve arranged to permit relative longitudinal movement of the shaft and sleeve and means under control of the operator for relatively moving the shaft and sleeve to project the second tool through the bore in the first tool into acting position beyond the first tool or to Withdraw the second tool Wholly Within the bore in the first tool.

2. A channel opening machine, having in combination, a channel opening tool having an axial bore, a sleeve on Which said tool is mounted, a second channel opening tool mounted to rotate coaxially With the first tool and arranged Within the first tool, a shaft upon which said second tool is mounted, means for connecting said shaft and sleeve to rotate together constructed to permit a relative longitudinal movement of the shaft and sleeve, a cam for relatively moving the shaft and sleeve to project the second tool into operating position beyond the first tool, means under control of the operator for actuating the cam and a spring for maintaining the second tool normally Withdrawn Within the first tool.

3. A channel opening machine having, in combination, a rotary channel opening tool, a sleeve upon Which said tool is mounted, a second channel opening tool arranged Within said first tool, a shaft slidably mounted Within said sleeve and keyed thereto support-ing said second tool, a spring acting on said shaft to normally maintain said second tool Wholly Within said first tool, a rotatable cam arranged to act on said shaft, and manually operable means to rotate said cam and thereby project said second tool into operative position beyond said first tool.

4. A channel opening machine having, in combination, a rotary channel opening tool, a sleeve upon Which said tool is mounted, a second rotary channel opening tool arran ed Within said first tool, a shaft slida ly mounted Within the sleeve and keyed thereto supporting said second tool, a spring acting on said shaft to maintain the second tool Wholly Within the first tool, a rotatable cam arranged to act on said shaft, a shaft upon which said cam is mounted, a liexible member Wound about saidshaft, and manually operable means to actuate said flexible member and thereby rotate said cam to project the second channel opening tool into operative position beyond the rst tool.

FRANK M. TRANER.

l/Vitnesses:

JAMES R. HoDDnR, ELIZABETH C. COUPE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

